This Thursday (4/8) the “The Cathedrals Express” will be passing Milton hauled by the 2008 built LNER Peppercorn A1 Pacific No. 60163 “Tornado”
It is hauling a train from Ely to Bristol, an unusual route, and is also stopping at Waterbeach for a couple of minutes which is also rare. It is due to leave Waterbeach at 07:53 and pass through Cambridge six minutes later so if you want to see it you it should pass the Fen Road level between those times.
The detailed timetable can be found online here.